Dr. Carlos Miguel Gouveia De Sequeira – Radiologist | Markham, ON

Dr. Carlos Miguel Gouveia Sequeira is a Radiologist specializing in the use of medical imaging to diagnose and sometimes treat diseases within the body. Practicing at medical facilities in Markham, ON, he supports various clinical departments with a focus on accurate diagnosis and patient care. His practice adheres to the high standards set by the College of Physicians and Surgeons of Ontario (CPSO). Dr. Sequeira provides comprehensive services in Radiology, serving patients requiring diagnostic imaging or image-guided procedures.

He graduated with a Medical Degree from the University of the Witwatersrand Faculty of Health Sciences in 1989 (South Africa). With over 26 years of experience as a practicing Radiologist since 1998, Dr. Sequeira is certified as a RCPSC Specialist. His extensive training and certification enable him to offer expert interpretation across a broad spectrum of imaging modalities.

Dr. Sequeira’s clinical philosophy emphasizes precision and clarity in diagnostic imaging. He is committed to providing accurate and timely reports to support clinical decision-making in Markham. Fluent in English, he strives to communicate complex imaging findings in a clear and accessible manner to both patients and referring physicians.

• Bone Densitometry (DEXA) Scan Interpretation: Analyzing DEXA scans to measure bone mineral density, assess osteoporosis risk, and monitor treatment effectiveness.
• Mammography and Breast Imaging Interpretation: Expert review and reporting of mammograms (including tomosynthesis/3D mammography) and breast ultrasound for cancer screening, diagnosis, and follow-up.
• Fluoroscopy Procedure Interpretation: Interpreting real-time X-ray imaging (fluoroscopy) used during procedures like barium studies (GI tract), hysterosalpingograms, or to guide certain injections.
• Magnetic Resonance Imaging (MRI) Interpretation: Specialized analysis and reporting of MRI scans, providing detailed images of soft tissues, brain, spine, joints, abdomen, and pelvis without using ionizing radiation.
• Ultrasound Interpretation (Sonography): Evaluation and reporting of diagnostic ultrasound images for assessing organs (e.g., liver, kidneys, thyroid, reproductive organs), blood flow, pregnancies, and musculoskeletal conditions.

Note: This list provides an overview of common radiology services. Dr. Sequeira interprets a wide range of medical imaging studies and/or performs procedures as indicated by your referring physician. Specific subspecialty services depend on the physician's focus and training.

All medical imaging services are provided in accordance with the standards of practice set by the College of Physicians and Surgeons of Ontario (CPSO).

Dr. Sequeira's practice is primarily based at The Ottawa Hospital in the vibrant Markham Village area, specifically near Berczy Park South in the Old Markham Village neighborhood. The facility is accessible via York Region Transit (YRT) / Viva, providing convenient transportation options for patients. The location offers easy access for patients in the region and is equipped to serve a diverse patient population. The facility is wheelchair accessible. Parking is available at the facility.

Are imaging studies interpreted by Dr. Sequeira covered by Ontario Health Insurance Plan (OHIP) in ON?

Medically necessary diagnostic imaging studies interpreted by a Radiologist like Dr. Sequeira are typically covered by Ontario Health Insurance Plan (OHIP) in ON when prescribed by your referring physician and performed at an accredited medical facility. Some advanced or specialized interventional procedures may also be covered. It's always best to confirm specific coverage details with Ontario Health Insurance Plan (OHIP) or the imaging clinic/hospital.

Do I need a referral from my doctor to have an imaging study interpreted by Dr. Sequeira?

Yes, almost all diagnostic imaging tests (like X-rays, CT, MRI, ultrasounds) and interventional radiology procedures require a formal request or requisition from your family doctor, specialist, or other authorized healthcare provider. Dr. Sequeira provides expert interpretation of these physician-ordered studies.

Why might I need an injection of 'contrast' or 'dye' for my scan?

Contrast material (often called 'dye', though it's usually clear) is a special substance that can be injected intravenously (or sometimes taken orally or rectally) to help certain organs, blood vessels, or tissues stand out more clearly on imaging exams like CT or MRI. It can help Dr. Sequeira see abnormalities that might otherwise be hidden. Not all scans require contrast; it's used when it can provide important additional diagnostic information.

The Ottawa Hospital
Suite 5-25, 381 Church Street, Riverside Campus
Markham, ON L3P 7P3

Phone: (905) 472-7373

The facility is wheelchair accessible.

Dr. Sequeira is a licensed physician regulated by the College of Physicians and Surgeons of Ontario (CPSO) under the Medicine Act, 1991 in ON. Imaging services are typically provided based on referrals from other physicians.

Verify registration with the College of Physicians and Surgeons of Ontario (CPSO): https://doctors.cpso.on.ca/DoctorDetails/De-Sequeira-Carlos-Miguel-Gouveia/0158060-73159